Series of books

i noticed the room had only 4 book stacks ( the long cupboard of books). And all of them had old thick books. I had already completed one of them so i started the second one immediately, then the second one and then the third. I had completed half of the third one. I noticed that as i completed more and more books, the level of books rose. For example the first book stack consisted of the books that were familiar to me and i had already known about most of the illnesses and herbs before that already which means it simply gave the basic knowledge of all the herbs and illnesses that are present around us and can be cured and used, basic knowledge.

The second book stack consisted of books which made me understand that even though we consider curing poison from poison very risky and is considered kind of witchcraft methods in this era but is really useful. Even though the people may not like it but it can ofcourse help cure. Till the second stack it was useful. Then as soon as i started reading the third stack, it showed how poison can be used by attaching the internal spiritual Qi to the poison and then using it either to cure or to kill. I was so busy reading and copying that i forgot about the time. I looked outside it was almost 4 a.m. I couldn't catch upto time at all....

Then i left immediately to head back to my room. I reached my room opened my clothes as ancient clothes are really uncomfortable and went to bed to sleep. I had ,3 hours to sleep at least. Then i had to go back to library at 9 a.m. again. So i closed my eyes and fall asleep immediately without much effort.....